text: // Copyright 2018 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef CHROME_BROWSER_ANDROID_FEED_FEED_HOST_SERVICE_FACTORY_H_
  #define CHROME_BROWSER_ANDROID_FEED_FEED_HOST_SERVICE_FACTORY_H_
  
  #include "base/macros.h"
  #include "base/memory/singleton.h"
  #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
  
  namespace content {
  class BrowserContext;
  }
  
  namespace feed {
  
  class FeedHostService;
  
  // Factory to create one FeedHostService per browser context. Callers need to
  // watch out for nullptr when incognito, as the feed should not be used then.
  class FeedHostServiceFactory : public BrowserContextKeyedServiceFactory {
   public:
    static FeedHostService* GetForBrowserContext(
        content::BrowserContext* context);
  
    static FeedHostServiceFactory* GetInstance();
  
   private:
    friend struct base::DefaultSingletonTraits<FeedHostServiceFactory>;
  
    FeedHostServiceFactory();
    ~FeedHostServiceFactory() override;
  
    // BrowserContextKeyedServiceFactory:
    KeyedService* BuildServiceInstanceFor(
        content::BrowserContext* context) const override;
    content::BrowserContext* GetBrowserContextToUse(
        content::BrowserContext* context) const override;
  
    DISALLOW_COPY_AND_ASSIGN(FeedHostServiceFactory);
  };
  
  }  // namespace feed
  
  #endif  // CHROME_BROWSER_ANDROID_FEED_FEED_HOST_SERVICE_FACTORY_H_
  